One vertex per element, one color per generator, with an edge from x to x·s.
(3,9)(6,10)(11,15)(14,16)(18,20)(19,25)(21,29)(30,32)(33,34,39,36)(35,42,41,38)(37,40,46,44)(43,48,47,45)(1,2)(3,10)(4,12)(5,8)(6,9)(7,13)(11,14)(15,16)(17,18,22,20)(19,23,25,26)(21,28,29,24)(27,32,31,30)(33,34,39,36)(35,38,41,42)(37,44,46,40)(43,48,47,45)(1,2,5,8)(3,6,9,10)(4,7,13,12)(11,14,15,16)(17,18,22,20)(19,26,25,23)(21,24,29,28)(27,32,31,30)(33,35)(34,38)(36,42)(37,43)(39,41)(40,45)(44,48)(46,47)(1,2)(3,6)(4,7)(5,8)(9,10)(11,14)(12,13)(15,16)(17,19,22,25)(18,23,20,26)(21,27,29,31)(24,30,28,32)(33,36,39,34)(35,42,41,38)(37,44,46,40)(43,48,47,45)(1,3,5,9)(2,6,8,10)(4,11,13,15)(7,14,12,16)(17,20,22,18)(19,26,25,23)(21,28,29,24)(27,32,31,30)(33,37,39,46)(34,40,36,44)(35,43,41,47)(38,45,42,48)(1,4)(2,7)(3,11)(5,13)(6,14)(8,12)(9,15)(10,16)(17,21)(18,24)(19,27)(20,28)(22,29)(23,30)(25,31)(26,32)(33,38,39,42)(34,41,36,35)(37,45,46,48)(40,47,44,43)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.